Parapositronium decay and dispersion relations

Lopez Castro, G.;Smith, Christopher;Pestieau, Jean;Trine, Stéphanie

Files

Preprint.pdf
  • Open Access
  • Adobe PDF
  • 167.58 KB
Download

Details

Authors
Abstract
(en) Positronium decay rates are computed at the one-loop level, using convolution-type factorized amplitudes. The dynamics of this factorization is probed with dispersion relations, showing that unallowed approximations are usually made, and some ordre alpha^2 corrections missed. Further, we discuss the relevance of the Schrodinger wavefunction as the basis for perturbative calculations. Finally, we apply our formalism to the parapositronium two-photon decay. Comment: LaTeX, 13 pages, 1 eps figure
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Parapositronium decay and dispersion relations. (n.d.). https://hdl.handle.net/2078.5/256798